类Salen和β-二酮稀土配合物的晶体结构和荧光性质（英文）

发布时间：2018-02-11 04:07

  本文关键词： -苯二胺缩邻香兰素 β-二酮 镧系配合物 配位　出处：《无机化学学报》2016年09期 　论文类型：期刊论文

【摘要】：通过1,3-苯二胺缩邻香兰素和Ln(acac)3·H2O(Ln=Ce,Eu)反应,合成了2种双核稀土配合物[Ce2L(acac)4(CH3OH)]2·2CH2Cl2(1)和[Eu2L(acac)4(CH3OH)]2·2CH2Cl2(2)。X射线单晶衍射分析确定了配合物的晶体结构,配合物中2个稀土离子均为8配位,具有相同的反四棱柱的配位构型。荧光性质研究表明配合物2显示稀土离子和配体共发光,主要原因是配体1,3-苯二胺缩邻香兰素的三线态能级与中心离子Eu(Ⅲ)的三线态能级相匹配。
[Abstract]:Two binuclear rare earth complexes [ce _ 2L ~ (2 +) acacacaca _ (4) (Ch _ 3OH)] _ 2 路2CH _ 2Cl _ (1) and [EU _ (2L) acacacaca _ (4CH _ 3H)] _ (2 路2CH _ 2Cl _ 2H)] 2 路2CH _ 2Cl _ 2O ~ (2 +) have been synthesized by the reaction of o-vanillin with Ln(acac)3 路H _ 2O _ (Ln) ce (EU). The crystal structure of the complexes has been determined by X-ray diffraction. The two rare earth ions in the complexes are all 8-coordinated. The fluorescence properties of complex 2 show that rare earth ions and ligand co-luminescence. The main reason is that the three-wire energy level of the ligand (1) 3-phenylenediamine constricted vanillin matches the three-wire energy level of the central ion EU (鈪，

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